package com.shirodemo.util;

/**
 * Created by 追风少年
 *
 * @email doubihah@foxmail.com
 * @create 2017/12/13 13:14
 **/
public class StringUtils {

    /**
     * 判断字符串是否为空
     * @return true: string is null
     */
    public static final boolean isNull(String str){
        return str == null || str.trim().length() == 0;
    }

}
